Intel Arc B580 – 144Hz Monitor Mode Breaks After Mode Switch / Display Driver Bug

[twenty_7]

I am experiencing a persistent issue with my Intel Arc B580 GPU where 144Hz display mode does not reliably stay active. The problem appears to be driver/display pipeline related, not hardware or cable. Below are the exact details of the problem and the steps I have taken to reproduce and investigate it.

PC / Hardware Setup:

• CPU: Intel Core i7-9700K
• GPU: Intel Arc B580 (driver version 38.0.101.8509 installed manually)
• Monitor: LG 27GL83A-B
• Display connection: DisplayPort (DP 1.4 supported and enabled)
• Cable: previously used with GTX 1070 at 1440p and 144Hz (10-bit) without issues

Problem Summary:

• Windows honours 144Hz on desktop initially after fresh boot.
• Motion (cursor movement and frame feel) behaves like 60Hz until the display driver pipeline is reset (e.g., Win+Ctrl+Shift+B). I have to do it multiple times in a row for it to work every time I open a new fullscreen app.
• Launching a game such as Overwatch results in the display switching to 60Hz again or “fake 60Hz”, even though Windows continues to report 144Hz.
• The only way to recover the true 144Hz behavior at that point is to manually reset the graphics driver (Win+Ctrl+Shift+B) during playing or after closing problematic applications.
• Switching to 120Hz is stable regardless of applications, but that is not the core issue here.

Steps Taken to Diagnose:

• Installation of correct LG monitor INF drivers from LG support page.
• Fresh clean driver install via DDU, offline install of latest Intel Arc driver.
• Disable Windows automatic driver installs.
• Disabled Fast Startup and hibernation via powercfg.
• Disabled overlays (Steam, Blizzard, Discord, Xbox Game Bar).
• Tested borderless and fullscreen in games.
• Attempted registry tweak to disable MPO (Multiplane Overlay).
• Tried switching between DP 1.4 and DP 1.2 in monitor OSD.
• Verified monitor still identified properly and 144Hz is selectable in Windows.

Observed Behavior:

• 144Hz works perfectly on desktop only after display driver reset.
• After launching or switching from games, refresh reverts or appears to function incorrectly (effectively 60Hz).
• Manual “graphics driver reset” temporarily restores 144Hz.
• Windows refresh rate reporting remains at 144Hz even when motion behaves like 60Hz.

Reproduction Steps:

• Set Windows display refresh rate to 144Hz.
• Move cursor — sometimes feels like 60Hz.
• Open a game in fullscreen → return to desktop → 144Hz misbehaves.
• Press Win+Ctrl+Shift+B → 144Hz works correctly again.
• Expected Behavior:
• 144Hz display mode should work reliably without requiring manual driver resets.
• Switching into and out of applications should not break refresh mode.

Logs / Events:

• Display driver events show progress and occasional fallback messages.
• No hardware warnings in Device Manager.

Impact:
This significantly affects display experience and usability of high refresh rates on Intel Arc hardware. I have verified that the monitor and cable worked correctly with a previous NVIDIA GPU at 144Hz.

Request:
Please investigate whether this is a known driver bug affecting mode setting for 144Hz on Arc GPUs with DisplayPort connections. Provide guidance on fixes or confirm if a driver update is planned.

[AlHill]

Not that it matters one way or the other, but you do not meet the hardware requirements for arc:

https://www.intel.com/content/www/us/en/support/articles/000091128/graphics/intel-arc-dedicated-graphics-family.html

Doc (not an Intel employee or contractor)
[CoPilot is a virus, W11 is a keystroke logger, all from MicroSlop]

[twenty_7]

I am aware that my Computer is bellow the hardware requirements, but before I bought the GPU a lot of people have said and confirmed that the GPU does work on older hardware bellow the recommended ones, it's just that Intel is not responsible for any issues bellow their recommendations. I understood that it's basically an official way of Intel covering their own butt, but it does not have to be a rule.
Everything works on my PC. I can play whatever I want, this is the only issue (apart from Intel issues like crashes and lack of of support, etc.)

[AlHill]

"Everything works on my PC. "

Apparently not.  So, even though Intel published a set of minimum requirements, you still believe you are entitled to support?

I am just saying what the requirements are.  Whether Intel support responds is up to them.

Doc (not an Intel employee or contractor)
[CoPilot is a virus, W11 is a keystroke logger, all from MicroSlop]